Which of the following does an eastern bluebird do to obtain its food

Acid rain is the direct result of acid released by burning fossil fuels. select the best answer from the choices provided ot o f true or false

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.